High power aqueous hybrid asymmetric supercapacitor based on zero-dimensional ZnS nanoparticles with two-dimensional nanoflakes CuSe2 nanostructures

The impact of Ni and Zn doping on the thermal durability and thermoelectric variables of pristine CuSe nanoparticles

“…42,43 The XPS profiles of Se 2d for all samples exhibit two photoelectron bands with binding energy values of 54.2 eV and 55.0 eV, designated as Se 2d 5/2 and Se 2d 3/2 , respectively, known as standard peaks of Se. 2–42,44 The identical patterns of both of the Cu 2p peaks and Se 3d peaks for each nanoparticle indicate the existence of CuSe.…”

“…The importance of copper selenides within the TMC family lies in their diverse range of applications, including thermoelectric devices, photovoltaics, energy storage, catalysis, and optoelectronics. 8–10 Copper selenides comprise a varied subgroup of p-type semiconductors that exist in a wide variety of stoichiometric phases, such as CuSe, 11 Cu 2 Se, CuSe 2 , 12 Cu 3 Se 2 , 13 Cu 5 Se 4 , 14 and Cu 7 Se 4 , 15 as well as non-stoichiometric forms of Cu 2− x Se (2.00 ≥ 2 − x ≥ 1.72). 16…”

Facile synthesis of the SnTe/SnSe binary nanocomposite via a hydrothermal route for flexible solid-state supercapacitors

“…In a similar vein, expanding the useable voltage range can be achieved by modifying the electrolyte (organic, ionic, aqueous or redox-added electrolytes) and electrode fabrication (asymmetric or symmetric). 11 Ruthenium oxide (RuO 2 ) is a prominent transition metal oxide used in pseudocapacitor electrodes because of its unique properties; however, due to its high cost, its commercial utilization is difficult and severely conned. In recent years, numerous transition-metal oxides like MnO 2 , 12 NiO x , 13 Co 3 O 4 , 14 and PbO 4 , 15 in addition to oxide materials, conducting polymers 16 and carbonaceous material, 17 have been studied as supercapacitor electrode materials to enhance the electrochemical performance.…”

“…In a similar vein, expanding the useable voltage range can be achieved by modifying the electrolyte (organic, ionic, aqueous or redox-added electrolytes) and electrode fabrication (asymmetric or symmetric). 11 …”

“…The rate capacity and energy density of TMSs may be higher than those of the sulfides and oxides of the same elements. 11 The electrochemical characteristics of pure tin-selenide and tin telluride do not fulfill the industry standards because of the low cycling stability. Therefore, many methods are employed to improve the functionality of these electrode materials, such as morphology control, composite manufacturing and elemental doping.…”